Mobile Object Ceiling-Sign Navigation Near Parked Vehicles
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Solution Overview
Problem
Mobile objects face challenges in detecting their position accurately near parked transportation vehicles due to interference from multiple vehicles, which can obstruct proper positioning.
Innovation Solution
The method involves providing signs on the ceiling of lateral areas adjacent to the parking area, allowing the mobile object to detect positional information and move along a second direction intersecting the first, enabling it to turn and approach the parking area correctly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the mobile object detects signs on the floor or ceiling to determine its position, then the position detection capability is improved, but in the vicinity of the parking area where transportation vehicles are parked, the position cannot be properly detected due to vehicles getting in the way
Solution Approach 1:
The patent places signs on the ceiling in the lateral area above the parking area, changing the detection plane from the floor level to the ceiling level. This dimensional change allows the mobile object to detect its position in the lateral area without being blocked by transportation vehicles parked on the floor, thereby resolving the contradiction between position detection accuracy and vehicle interference.
2Productivity
If the mobile object moves directly toward the parking area, then the movement efficiency is improved, but the position detection is blocked by parked transportation vehicles
Solution Approach 1:
The patent introduces a preliminary movement phase where the mobile object moves to the lateral area and detects signs on the ceiling before approaching the parking area. This preliminary action of positioning in the lateral area allows the mobile object to acquire position information without being blocked by vehicles, ensuring accurate position detection before the final approach to the parking area.
3Area of stationary object
If signs are provided only in the parking area, then the position detection coverage is improved, but detection is blocked by vehicles in the parking area
Solution Approach 1:
The patent extends the sign placement from the floor level to the ceiling level in the lateral area above the parking area. This vertical dimensionality change allows signs to be positioned in a space above the vehicles, ensuring that the signs are visible to the mobile object without being blocked by the vehicles themselves, thus expanding the effective detection coverage area.
Data Source
AI summary
A control method is for a mobile object that automatically moves in situation where signs each indicating a position are provided on a ceiling of a lateral area on a first direction side with respect to a parking area where a transportation vehicle is parked, along a second direction that intersects the first direction and that is along the parking area. The method includes acquiring positional information of the mobile object by causing the mobile object to detect at least one of the signs; causing the mobile object to move within the lateral area toward the second direction based on the positional information of the mobile object; and causing the mobile object to move toward the parking area by causing the mobile object to turn and move toward an opposite side to the first direction after causing the mobile object to move within the lateral area toward the second direction.